"It was just tough to see. I was just happy that he was able to get up and walk on his own power," teammate Al Horford said. "That's probably one of the worst falls I've seen."

Brown lost his grip on the rim as he finished the play, falling awkwardly "in full backflip mode" as Kyrie Irving put it, to the court with 1:31 remaining in the period. Brown stayed down and was still for several minutes, and a stretcher was rushed out. But Brown was eventually able to walk slowly to the locker room on his own, and the crowd at Target Center gave him a standing ovation.

"For him to get up, that's a strong kid," Marcus Smart said. "Took everything he had. We were just happy to see him on his feet and walking off on his own."

After he was evaluated for concussion-like symptoms, Brown was taken to a hospital for a CT scan and other testing, coach Brad Stevens said.

"Our trainer said when he left the locker room he was feeling good, moving OK and in good spirits," Stevens said.

Stevens said if the doctors found any reason for concern, Brown would stay overnight in Minnesota and fly back to Boston on Friday.

"But they're not anticipating that," he said, "so that's a good thing."

Brown had 14 points and five rebounds in 28 minutes for the Celtics, who held on to win 117-109 . The arena went silent after the fall by the second-year small forward, and the Timberwolves expressed just as much concern afterward as the Celtics.